When making new buildings or shelters, sometimes ingame ids can be used. When doing so, there are a couple things we live with: the ingame object will become available at the beginning of freeform games, which it might not have been previously, and the selection highlight in the purchase menu might jump to another one with the same id when the purchase menu is rotated. These things are minor. However, other problems can occur if the ingame id is for a researched object. For example, if the id is for an ingame building that allows selecting what program it will show, the ingame building will become available at the start of a zoo without having any programs to select. Because of this, it is recommended that user made objects should not use the ids of ingame researched objects. Here is a list of the ingame researched objects, along with their ids and research messages.

Buildings:Aviary: 8016 (54239, "Funding this conservation program will allow you to purchase an Aviary.")Crustacean House: 8052 (54328, "Crustacean House. Funding this conservation program will allow you to purchase a crustacean house.")Insect House: 8018 (54264, "Funding this conservation program will allow you to purchase an Insect House.")Lepospondyl House: 8029 (54286, "Funding this conservation program will allow you to purchase a Lepospondyl House.")Nocturnal House: 8075 (54367, "Nocturnal House. Funding this conservation program will allow you to purchase a nocturnal house.")Primate House: 8017 (54240, "Funding this conservation program will allow you to purchase a Primate House.")Pteranodon House: 8028 (54285, "Funding this conservation program will allow you to purchase a Pteranodon House.")Reptile House: 8015 (54238, "Funding this conservation program will allow you to purchase a Reptile House.")Tropical Aquarium: 8053 (54329, "Tropical Aquarium. Funding this conservation program will allow you to purchase a tropical aquarium.")

Shelters:Burrow: 8121 (54277, "Researching this project will allow you to purchase a burrow, which is favored by warthogs.")Concrete Shelter: 8108 (54272, "Researching this project will allow you to purchase a concrete shelter.")Large Burrow: 8122 (54283, "Researching this project will allow you to purchase a large burrow, which is favored by warthogs.")Large Concrete Shelter: 8109 (54279, "Researching this project will allow you to purchase a large concrete shelter.")Large Elephant Shelter: 8117 (54275, "Researching this project will allow you to purchase a large elephant shelter.")Large Giraffe Shelter: 8119 (54276, "Researching this project will allow you to purchase a large giraffe shelter.")Large Lean-to Shelter: 8106 (54278, "Researching this project will allow you to purchase a large lean-to shelter.")Large Stable: 8115 (54282, "Researching this project will allow you to purchase a large stable, the favorite shelter of large hoofed animals.")Large Wood Shelter: 8112 (54281, "Researching this project will allow you to purchase a large wood shelter.")Lean-to: 8105 (54273, "Researching this project will allow you to purchase a lean-to shelter.")Panda Rock Cave: 8103 (54274, "Researching this project will allow you to purchase a panda cave shelter.")Rock Cave: 8100 (54235, "Researching this project will allow you to purchase a rock cave, the favorite shelter of big cats and bears.")Small Burrow: 8120 (54232, "Researching this project will allow you to purchase a small burrow, which is favored by warthogs.")Small Elephant Shelter: 8116 (54233, "Researching this project will allow you to purchase a small elephant shelter.")Small Giraffe Shelter: 8118 (54234, "Researching this project will allow you to purchase a small giraffe shelter.")Snowy Rock Cave: 8102 (54236, "Researching this project will allow you to purchase a snowy rock cave, which is favored by polar bears.")Stable: 8114 (54237, "Researching this project will allow you to purchase a stable, the favorite shelter of large hoofed animals.")Wood Shelter: 8111 (54280, "Researching this project will allow you to purchase a wood shelter.")

Toys:Cat Climbing Tree: 6106 (54255, "Researching this project will allow you to purchase a cat climbing tree, which is favored by leopards.")Gorilla Climbing Bars: 6102 (54254, "Researching this project will allow you to purchase gorilla climbing bars.")Large Chimpanzee Bars: 6103 (54256, "Researching this project will allow you to purchase large chimpanzee bars.")Large Lion Rock: 6109 (54252, "Researching this project will allow you to purchase a lion climbing rock, upon which only lions lounge.")Small Chimpanzee Bars: 6101 (54251, "Researching this project will allow you to purchase small monkey bars.")Swinging Log: 6100 (54253, "Researching this project will allow you to purchase a swinging log toy.")

Foliage:Acacia Caffra Tree: 7000 (54230, "Researching this project will allow you to grow acacia caffra trees, which are favored by African savannah animals.")Arctic Birch Tree: 7096 (54318, "Researching this project will allow you to grow an Arctic Birch Tree.")Bald Cypress Tree: 7083 (54315, "Researching this project will allow you to grow a Bald Cypress Tree.")Bamboo: 7016 (54229, "Researching this project will allow you to grow bamboo, the favorite food of the giant panda.")Club Moss Shrub: 7080 (54313, "Researching this project will allow you to grow a Club Moss Shrub.")Dawn Redwood Tree: 7084 (54316, "Researching this project will allow you to grow a Dawn Redwood Tree.")Divercate Tree Coral: 7406 (54341, "Divercate Tree Coral. Researching this program will allow you to purchase divercate tree coral, which is favored by great white sharks.")Globe Willow Tree: 7028 (54231, "Researching this project will allow you to grow globe willow trees.")Glossopteris Tree: 7087 (54312, "Researching this project will allow you to grow a Glossopteris Tree.")Horsetail: 7088 (54314, "Researching this project will allow you to grow a Horsetail.")Llala Palm Tree: 7042 (54228, "Researching this project will allow you to grow llala palm trees, which are favored by tropical rainforest animals.")Monkey Puzzle Tree: 7092 (54310, "Researching this project will allow you to grow a Monkey Puzzle Tree.")Norfolk Island Pine Tree: 7093 (54317, "Researching this project will allow you to grow a Norfolk Island Pine Tree.")Sea Anemone: 7400 (54342, "Sea Anemone. Researching this program will allow you to purchase sea anemones.")Sea Lettuce: 7410 (54340, "Sea Lettuce. Researching this program will allow you to purchase sea lettuce, which is favored by narwhals.")Sea Star: 7415 (54343, "Sea Star. Researching this program will allow you to purchase sea stars, which are favored by humpback whales.")Thorn Acacia Tree: 7001 (54227, "Researching this project will allow you to grow thorn acacia trees, which are favored by African savannah animals.")Thouarsus Cycad Tree: 7082 (54311, "Researching this project will allow you to grow a Thouarsus Cycad.")

Animals:Ankylosaurus: 5087 (54307, "Genetic research advancements will allow you to adopt an Ankylosaurus.")Apatosaurus: 5325 (54309, "Genetic research advancements will allow you to adopt an Apatosaurus.")Black Leopard: 5011 (54222, "The World Conservation Fund will allow you to adopt black leopards when you fund this program.")Coelophysis: 5326 (54308, "Genetic research advancements will allow you to adopt a Coelophysis.")Giant Panda: 5001 (54225, "The World Conservation Fund will allow you to adopt giant pandas when you fund this program.")Great White Shark: 5401 (54338, "Great White Shark. Researching this program will allow you to adopt a great white shark.")Humpback Whale: 5405 (54339, "Humpback Whale. Researching this program will allow you to adopt a humpback whale.")Kentrosaurus: 5097 (54303, "Genetic research advancements will allow you to adopt a Kentrosaurus.")Lowland Gorilla: 5021 (54221, "The World Conservation Fund will allow you to adopt lowland gorillas when you fund this program.")Narwhal: 5407 (54336, "Narwhal. Researching this program will allow you to adopt a narwhal.")Okapi: 5028 (54226, "The World Conservation Fund will allow you to adopt okapis when you fund this program.")Plateosaurus: 5328 (54302, "Genetic research advancements will allow you to adopt a Plateosaurus.")Plesiosaurus: 5098 (54305, "Genetic research advancements will allow you to adopt a Plesiosaurus.")Shortfin Mako Shark: 5411 (54337, "Shortfin Mako Shark. Researching this program will allow you to adopt a shortfin mako shark.")Snow Leopard: 5012 (54224, "The World Conservation Fund will allow you to adopt snow leopards when you fund this program.")Spinosaurus: 5091 (54301, "Genetic research advancements will allow you to adopt a Spinosaurus.")Tyrannosaurus rex: 5085 (54300, "Genetic research advancements will allow you to adopt a Tyrannosaurus rex.")Velociraptor: 5093 (54306, "Genetic research advancements will allow you to adopt a Velociraptor.")White Bengal Tiger: 5045 (54223, "The World Conservation Fund will allow you to adopt white Bengal tigers when you fund this program.")Wooly Mammoth: 5329 (54304, "Genetic research advancements will allow you to adopt a Wooly Mammoth.")